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| Paper: |
The Vela Pulsar Wind Nebula Resolved with Chandra |
| Volume: |
271, Neutron Stars in Supernova Remnants |
| Page: |
181 |
| Authors: |
Kargaltsev, O.; Pavlov, G. G.; Sanwal, D.; Garmire, G. P. |
| Abstract: |
Radio and X-ray observations show that many young pulsars are embedded in pulsar wind nebulae (PWNe) emitting nonthermal radiation. The Chandra observations of the Vela PWN have shown a spectacular fine structure which resembles the Crab PWN - arcs, jets, knots, and diffuse cometary tails. We have analyzed the data obtained in two Chandra carried out on 2000 April 30 and November 30. Comparison of the two observations shows changes up to 30% in the surface brightness of the PWN features. Some of the PWN elements show appreciable shifts, up to a few arcseconds (~ 1016 cm), and/or spectral changes. The spectra of the PWN elements are power laws with slopes varying from Gamma ~ 1.3 for the NW jet and inner arc to Gamma ~ 1.7 for the outer diffuse nebula. |
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